.help-center {
  padding: 50px 0px;
  background: #ffffff;
}

.help-center .help-center-inner {
  width: 1200px;
  margin: 0px auto;
  overflow: hidden;
}

.help-center .help-nav {
  float: left;
  width: 240px;
  border-right: 1px solid #e5e5e5;
  padding-bottom: 10000em;
    margin-bottom: -10000em;
}

.help-center .help-nav .help-nav-inner {
}

.help-center .help-nav .nav-title {
  font-size: 20px;
  padding-bottom: 10px;
  font-weight: bold;
}

.help-center .help-nav .nav-item {
  padding: 15px 0px;
  border-top: 1px solid #e5e5e5;
}

.help-center .help-nav .nav-item .item-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 5px;
}
.help-center .help-nav .nav-item .item-content a{
  display: block;
  padding: 5px 0px;
}
.help-center .help-nav .nav-item .item-content .selected{
  color: #e53737;
  font-weight: bold;
}
.help-center .help-content {
  margin-left: 300px;
}

.help-center .help-content .help-content-title {
  font-size: 36px;
  border-bottom: 1px dashed #e5e5e5;
  padding-bottom: 20px;
  margin-bottom: 20px;
}

.help-center .help-content .help-content-body {
  font-size: 16px;
  line-height: 1.8;
}

.help-center .help-content .help-content-body img {
  max-width: 100%;
}

.help-center .help-content .help-content-body p {
  padding: 0.5em 0px;
}